What is the long, steel tubing I saw being installed in my neighbor’s chimney?

When spring and summer arrives, many homeowners take advantage of the warmer weather for their spring-cleaning chores and working on home improvement projects. With the fireplace taking center stage for much of the winter, the warmer months are the perfect time of year to replace cracked or worn chimney liners. 

Chimney Liner Keene, NHWhat is a Chimney Liner and Why You Need It?

A chimney or flue liner is a clay, ceramic, or metal conduit installed in the chimney that helps shield the masonry from the high heat and flames in the fireplace. In addition to helping prevent heat transfer to combustible materials, the liner also protects the interior masonry walls from the damaging effects of the corrosive combustion gases. It also helps direct the exhaust up the flue where its expelled out of the home.

Most homes today with a chimney have a flue liner since building codes now require them. However, homes built in the early 1900s and earlier were commonly built without a liner.


Some of those homes today are still without the protection of a chimney liner. Many older homes have since upgraded their fireplace or heating stove but didn’t update their flue. Since flue size is dependent on the type of heating appliance, an incorrectly sized flue is a safety issue.  

When a Chimney Liners Needs Repair or Replacement

A well-maintained chimney liner can last for 15 to 20 years or more. Determining whether the liner needs repair or replacement requires a flue inspection, preferably with a video scan. The majority of chimney liners are clay tiles which can crack or split in very high temperatures. When the chimney is not cleaned regularly, creosote builds-up on the surface. The high heat in the fireplace can ignite the creosote leading to a chimney fire. The fire can cause the tiles to burst increasing the risk of the fire spreading throughout the house. Also, the combination of corrosive gases and moisture can cause the liner to deteriorate, increasing the risk of exposure to dangerous fumes.   

Stainless Steel Chimney Liner Concord, NHStainless-Steel Chimney Liner

When its time to upgrade the flue or reline the chimney, homeowners should seriously consider a UL-listed stainless-steel chimney liner. A stainless-steel liner is a long tube that is installed in the chimney. You may have even noticed it being installed in a nearby home. Its simple installation process makes it more affordable than other types of liners, like clay tile and cement. Also, stainless steel liners have many other benefits:


Stainless steel is extremely tough and durable that will provide many years of protection. It is also resistant to moisture, rust, and pests.

Heating Efficiency

A steel liner can be insulated to increase heating efficiency. It will help minimize downdrafts increasing the heating efficiency of the fireplace or heating stove while also reducing creosote. An insulated steel liner will also keep your home warmer for a more extended period after the fire is out.

Easier Maintenance

The smooth circular surface of a stainless-steel liner makes it easier to clean and maintain. There are no rigid surfaces that can trap soot, creosote, and other dirt that make other types of liners harder to clean.

First Thing

John RantaJohn Ranta
17:01 22 Mar 24
They arrived on time, worked quickly and showed me the results. Prfessional throughout. jr
william greenwilliam green
23:21 14 Mar 24
Really helped me out can't say enough good things highly recommend!!!! The young man that came to my home was very knowledgeable and friendly great attitude all around answered all my questions and left me stress free best of all left no mess.🤙🏻🤙🏻
Michael Dell'OrtoMichael Dell'Orto
18:39 14 Mar 24
Jaime ConleyJaime Conley
17:13 14 Mar 24
Sarah GilliattSarah Gilliatt
01:46 13 Mar 24
A very thorough and careful job done! Thank you.
Larry CookLarry Cook
15:11 07 Mar 24
I wanted to give 5 stars but they are very busy which meant I had a good wait for both the inspection/cleaning, then for a quote on repairs and then for the repairs. Their prices seemed a little high to me but I have nothing to compare with as they were highly recommended by someone I trust and other companies had plenty of negatives reviews which kept me from getting additional quotes. I am happy with the work and they promptly returned to fix a mistake that had been made. Chris the inspector, Jennifer in the office, and Alex and his repair crew were all pleasant and took the time to answer all of my questions. Alex and his crew even took their shoes off (it was winter) before entering my house without even being asked! So if you are not in a rush and want to ensure you chimney is as safe as possible then I think you'll be happy with Black Moose.
Rebecca DeFuscoRebecca DeFusco
22:35 21 Feb 24
After a recent sweep of our chimney, it was discovered that our flue tiles were cracked. Black Moose techs were hard working, detail oriented and professional! Nice jobs guys! See you next year for my cleaning!
Karen CKaren C
14:52 14 Feb 24
Excellent I highly recommend Black Moose Chimney and Stove; Kelly and Liam are awesome, they did a great job. Extremely professional, arrived early, went through everything with a fine tooth comb ensuring pellet stove was thoroughly cleaned. They also were respectful of my home, conscientious and cleaned up after themselves. Made sure stove worked prior to leaving and told me to call promptly if anything came up afterward. Will definitely use them again.
Denise ClarkDenise Clark
16:32 31 Jan 24
We've had Black Moose clean our chimney for a number of years.But recently, we had an emergency situation at our home involving our chimney & oil furnace flue, which was caked full of soot from a malfunctioning furnace. They came & cleaned out both flues in no time, even going up on the roof with snow on it! They cleaned up after their work in the interior rooms where the oil furnace and the woodstove are located. Great work. Reasonable prices. Very nice people. You can't go wrong with Black Moose.
Joe GJoe G
18:30 24 Jan 24
Goods: The technicians know their business, very efficient in cleaning/inspection along with cleaning up after the 'dirty work'.Others: Communications could be more effective. Despite early coordination about scope of work (multiple flues within same chimney) the estimate provided did not reflect this and the final invoice was significantly more than the estimate provided.Quote for follow-on chimney relining was significantly more than that offered by other companies in the area (and far more than neighbors experienced for similar work accomplished by other companies)